Get Directory of Executing assembly

GetExecutingDirectoryName.cs

/// Use most of the time
public static string GetExecutingDirectoryName() 
{ 
    var location = new Uri(Assembly.GetEntryAssembly().GetName().CodeBase); 
    return new FileInfo(location.AbsolutePath).Directory.FullName; 
}

/// In case of tests or when we know what we're doing
/// This works in ASP.NET Web API
public static string GetExecutingDirectoryNameForTests() 
{ 
    var location = new Uri(Assembly.GetExecutingAssembly().GetName().CodeBase);
	var dirName = new FileInfo(location.AbsolutePath).Directory.FullName;
	return Uri.UnescapeDataString(dirName);
}

Reference: https://www.simple-talk.com/blogs/2015/01/14/c-getting-the-directory-of-a-running-executable/